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OLDEST U-PB CRYSTALLISATION AGE FOR THE WEST AFRICAN CRATON FROM THE OUDALAN-GOROUOL BELT OF BURKINA FASO

2013; Geological Society of South Africa; Volume: 116; Issue: 1 Linguagem: Inglês

10.2113/gssajg.116.1.169

1996-8590

Asinne Tshibubudze, Kim A.A. Hein, L. Peters, A. J. WOOLFE, T. Campbell McCuaig,

Geophysical and Geoelectrical Methods

Research Article| June 01, 2013 OLDEST U-PB CRYSTALLISATION AGE FOR THE WEST AFRICAN CRATON FROM THE OUDALAN-GOROUOL BELT OF BURKINA FASO A. TSHIBUBUDZE; A. TSHIBUBUDZE School of Geosciences; University of the Witwatersrand Johannesburg, South Africa, e-mail: asinne.tshibubudze@wits.ac.za Search for other works by this author on: GSW Google Scholar K.A.A. HEIN; K.A.A. HEIN Corresponding Author, School of Geosciences; University of the Witwatersrand Johannesburg, South Africa, e-mail: kim.ncube-hein@wits.ac.za Search for other works by this author on: GSW Google Scholar L.F.H. PETERS; L.F.H. PETERS School of Geosciences; University of the Witwatersrand Johannesburg, South Africa, e-mail: luke.peters@students.wits.ac.za Search for other works by this author on: GSW Google Scholar A.J. WOOLFE; A.J. WOOLFE P O Box 883, Bromhof, 2154, South Africa, e-mail: alex.woolfe@live.co.za Search for other works by this author on: GSW Google Scholar T.C. McCUAIG T.C. McCUAIG Centre for Exploration Targeting (M006), School of Earth and Environment, The University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, e-mail: campbell.mccuaig@uwa.edu.au Search for other works by this author on: GSW Google Scholar Author and Article Information A. TSHIBUBUDZE School of Geosciences; University of the Witwatersrand Johannesburg, South Africa, e-mail: asinne.tshibubudze@wits.ac.za K.A.A. HEIN Corresponding Author, School of Geosciences; University of the Witwatersrand Johannesburg, South Africa, e-mail: kim.ncube-hein@wits.ac.za L.F.H. PETERS School of Geosciences; University of the Witwatersrand Johannesburg, South Africa, e-mail: luke.peters@students.wits.ac.za A.J. WOOLFE P O Box 883, Bromhof, 2154, South Africa, e-mail: alex.woolfe@live.co.za T.C. McCUAIG Centre for Exploration Targeting (M006), School of Earth and Environment, The University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia, e-mail: campbell.mccuaig@uwa.edu.au Publisher: Geological Society of South Africa First Online: 09 Mar 2017 Online ISSN: 1996-8590 Print ISSN: 1012-0750 © 2013 Geological Society of South Africa South African Journal of Geology (2013) 116 (1): 169–181. https://doi.org/10.2113/gssajg.116.1.169 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation A. TSHIBUBUDZE, K.A.A. HEIN, L.F.H. PETERS, A.J. WOOLFE, T.C. McCUAIG; OLDEST U-PB CRYSTALLISATION AGE FOR THE WEST AFRICAN CRATON FROM THE OUDALAN-GOROUOL BELT OF BURKINA FASO. South African Journal of Geology 2013;; 116 (1): 169–181. doi: https://doi.org/10.2113/gssajg.116.1.169 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySouth African Journal of Geology Search Advanced Search Abstract U-Pb geochronological data from the northern and western extensions of the Oudalan-Gorouol volcano-sedimentary belt (OGB) on 3 samples of granodiorite gneiss (sample BF_1144), migmatitic gneiss (sample BF_1299), and granite clast from a metaconglomerate (sample BF_1147) gave the oldest U-Pb crystallisation ages for outcropping Palaeoproterozoic rocks yet identified in the West African Craton (WAC).The U-Pb concordant crystallisation ages of 2253 ± 9 Ma and 2253 ± 15 Ma for samples BF_1144 and BF_1299, respectively, likely represent the age of crystallisation of parent granodiorite gneiss and may constrain the age of a gneissic protolith on which the OGB basin was deposited, or an early group of granitoids that was emplaced in the hinterland during formation of the OGB basin.A concordant age of 2255 ± 26 Ma for sample BF_1147 is interpreted as the age of crystallisation of a granite pluton that was eroded from a site nearby before becoming part of the Dembam Member, and constrains the maximum age of the Birimian Supergroup in the OGB.The older Pb-Pb ages on zircons from the granodiorite gneiss, migmatitic gneiss and granite clast are in the range ~2.34 to ~2.27 Ga, and are interpreted as inherited from pre-existing zircon cores. They are similar to Pb-Pb ages reported as inherited zircon ages from the Dabakala tonalitic gneiss (in Cote d'Ivoire). You do not have access to this content, please speak to your institutional administrator if you feel you should have access.